Oscillating engine and self-regulating gear therefor.



J. BERGESEN.

OSGILLATING ENGINE AND SELF RBGULATiNG GEAR THEREFOR.

APPLICATION FILED SEPT. 11, 1913.

Patented Nov. 10, 191i 4 SHEETS-SHEET l.

A TTOHNE Y8 J. BERGESBN. OSGILLATING ENGINE AND SELF RBGULATING GEAR THEREFOR.

APPLICATION FILED SEPT. 11, 1913.

Patehted Nov. 10, 1914.

4 SHEBTSSHEET 2.

WITNESSES ATTORNEYS J. BERGESEN. OSGILLATING ENGINE AND SELF REGULATING GEAR THEREFOR.

APPLICATION FILED SEPT. 11,1913.

1,1 16,974. Y Patented Nov. 10, r9143 4 SHEETS-SHEET 3.

WITNESSES 67 ATTORNEYS J. BERGE$EN.

OSGILLATING ENGINE AND SELF REGULATING GEAR THEREFOR.

APPLICATION FILED SEPT. 11,1913.

Patented Nov. 10, 1914.

4 SHEETS-SHEET 4.

ATTORNEYS UNI D sTATEs JOHN BERGESEEI, OF NEW YORK, N. Y.

OSOILLA'IING ENGINE AND BELE-REGULATIN G GEAR THEREFOR.

W Specification of-Lettcrs Patent.

Application filed September 11, 1913. Serial No.

To allmhom it ma concern Be it known t at I, JoHN .Bnnonsnn, a citizen of the United States, and aresident of the city I lyn, in tie county of Kings and State of New York, have invented a new and Imroved Oscillating Engine and Self-Regulhting Gear Therefor, of which the following is a full, clear, and exact description.

This invention relates to improvements in engines, and particularly to engines of the oscillating type, and also to the valve gear designed to properly control the same. The object in view is to provide an engine of the oscillating type with a plurality of pistons and suitable valve gearin so that a maximum power may be provide in a min mum space and at a minimum cost. Another object in view is to provide an engine with a plurality of pistons controlled from improved centrally arranged valves which may be variously adjusted for admitting and exhausting pressure from in front of any of the pistons or all simultaneously in order to provide any power desired.

A still further object of the invention is to provide an engine of the oscillating type with an improved valve gearing which will be automatically actuated by shutting off the steam at any point.

In carrying out the object of the invention a housing or cylinder is provided in which a plurality of abutments are arranged so as to divide the cylinder into com artments. In the cylinder are arranged a p urality of pistons, one piston for each compartment, and all of the pistons rigidly connected with a centrally arranged hollow piston rod. or operating shaft. In this operating shaft are a plurality of valves which control the inlet and exhaust, there being one valve for each compartment. In order that the valves may be properly operated an operating rod is provided which engages all of the valves so as to operate the same simultaneously. In order that this-valve controlling device may be actuated from a distance and may be caused to control the valve properly a valve gear is connected therewith which comprises an arm having a se ment which meshes with a gear wheel carried by a cable operated drum. When this drum is rotated power will be'of course communicated through the gear wheel and the segmental rack and the valve turned to a greater or-less extent.

n h ccompanying draw1ngs-F1gure 1 I :s a top plan view of New York, Borough of Brook- Patented Nov. 10, 1914.. 789,249. 4

ofan embodiment of the T lnventlon; Fig.- 2 is a longitudinal vertical sect on through Fig. 1 ,Fig. 3 is an enlarged detail perspective view of one of the valves; F1g. 4 is an enlarged section through Fig. 2 {on line 4- 4; Fig. 5 is an enlarged section through Fig. 2 on line 55; Fig. 6 is an enlarged sectional view through Fig. 2 on line 6-6; 7 is a to Ian view of a slightly modi ed form 0 t e invention in which the valve gear is shown connected with the valve; Fig. 8 is an enlarged detail perspective view of one of the valves used in connection with the engine disclosed in Figs. 1 and 11; Fig. 9 is an enlarged detail perspective view of one end of the valve controlling shaft; Fig.- 10 is a section through Fig. 11 on. line 10-10; the same being on a slightly enlarged scale; Fig. 11 is a section through Fig. 7 on line 1l11; Fig. 12 is a section through Fig. 11 approximately onllne 1212.

Referring to the accompanying drawings by numeral, 1 indicates a cylinder or housing which has rigidly connected therewith abutments 2, 3 and 4: so as to divide the cylinder 1 into compartments. In the construction of the-cylinder 1 the same may be made of any desired size, and when made comparatively large it is cast in sections 5, 6 and 7 which are machined oil in any desired manner, and then bolted together as clearly shown in Fig. 4, whereby a large cylinder is provided without making a comparatively large single casting. Arranged in the cylinder 1 is a hollow shaft 8 provided with pistons 9, 10 and 11 operating in the various compartments between the abutments 2, 3 and 4.. In Fig. 4 three piss tons have been shown though a greater or less number could be provided, this number, however, being desirable for securing a desirable length of stroke and a maximum power. In Fig. 12 a structure is shown in which two pistons are used. which will give a longer stroke with a large amount of power. Arranged in the shaft 8 are two sets of ports, namely-ports 12, 13 and 14, and ports 15, 16 and 17, these sets of ports being arranged in different planes so as to roperly operate with the valves 18, 19 an 20, the detailed structure of these valves being disclosed in Fig. 3. Referring to this figure it will'be observed that the valves have a base 21 and-inlet ports 22 and 23 and outlet exhaust ports 24 and 25, the outlet ports 24.- and 25 merging int a vertical passageway 26 (Fig. 4) so that the exhaust may pass out one of the openings 27 formed in plate 28. From openings 27 the exhaust passes through bore 29 into the exhaust pipe 30.

In connection with the valves 18, 19 and 20 it will be observed that the controlling shaft 31 has three prongs or projections 32 which engage and hold the various valves in place, and also which throw the valves for opening and closing the same. The shaft 31 has a controlling arm 33 secured to the outer end, which arm is guided by a strap 34 in its movement, strap being made of any desired length so as to give arm 33 the desired movement. Ordinarily, however, arm 33 need not be moved considerably as a small movement will open the various valves and then the shaft 8 will be rotated until the valves are closed, the cylinder 1 being rigidly held against movement.

In operation a suitable pressure pipe is connected with one of the ports 35, or pressure pipes may be connected to all of the ports, if desired. If only one pressure pipe is connected to the port 35 the other ports are closed by a suitable cap, not shown. After the pressure pipe has been properly connected up and the pressure turned on pressure will be maintained in the hollow shaft 8 around the operating shaft 31 so as to enter the various compartments in the cylinder as soon as the valves are opened. The valves may be set to open simultaneously, or may be set so that one valve will open slightly, followed a little later by a second valve, and finally by a third valve so that the pressure may be gradually applied and the power gradually increased. It will of course be evident that various other adjustments could be had without in any way departing from the spirit" of the invention. With the shaft 8 supplied with pressure the device is ready for' operation. In case the lever 33 was moved in either direction the valves would be operated and pressure would be allowed to pass through some of the ports into certain of the compartments, and thus move the shaft 8 one way or the other. The movement of the shaft 8 is in the same direction aS the movement of lever 33 so that the shaft will move the various ports to a closed position provided the movement of lever 33 has not been continued. By a continued movement of lever 33 the shaft can be caused to move to its extreme position. As the shaft 8 continues to move the same carries with it arm 36 to which the rudder or other device is connected.

In Figs. 7 to 12, inclusive, is disclosed a slightly modified form of the invention in which similar reference numerals will be used for similar parts, and additional numerals for additional parts. Referring to these figures by numeral, the shaft 8' is provided with pistons 37 and 38 which operate in compartments 39 and 40 formed in the cylinder 1. Abutments 41 and 42 arev provided for dividing cylinder 1 into compartments'39 and 40. Arranged in the shaft 8 so as to properly operate the engine are valves 43 and 44 constructed similar to valve 18 shown in Fig. i,but arranged so that th two valves may abut as shown in Fig. 12, and with a bifurcated controlling member 45 may straddle the two valves. The controlling member 45 is formed hollow, and also formed with a plurality of radiating apertures or passageways 46 so that steam entering the outer end 47 of member 45 will pass through aperture 46 into the shaft and thence through the ports in the cylinder 1 in a similar manner to the preferred structure. In this form of the invention instead of the pistonand the shaft 8' rotating the same'are keyed or otherwise rigidly secured to a support 48. The cylinder 1 is then caused to rotate about shaft 8', a suitable anti-friction member 49 being provided for reducing the friction. This form of invention is desirable where a comparatively stron and comparatively long movement is desired, as in lifts of various kinds. The engine also may be used for working doors, slides, feeding logs to saws, working signal devices and doing any other desired work which requires only a limited mov ment, and which ordinarily requires a bac and forth movement. The power is taken off the cylinder 1 through a segment 50. Preferably, cables are secured to the segment 50 and pass over pulleys 51 and 52 to the particular device to be operated and move back and forth as desired.

Rigidly secured to the operating shaft 45 is an arm 53 formed with a segmental rack 54' (Fig. 7) which is adapted to mesh with gear Wheel 55, which gear wheel is rigidly secured to or formed integral with a double drum'56. Drum 56 has connected therewith cables 57 and 58 which rotate the drum and also swing the same from one position to the other, as shown in Fig. 7, so as to turn the shaft 45. A link 59 is pivotally mounted at 60 to arm 53, and is formed with a slot 61 in which pin 62 is fitted so that when the drum 56 is thrown over to its extreme po sition, the pin 62 will strike the adjustable stop 63 and prevent any further movement so that gear wheel 55 cannot be moved out of mesh with rack 54. As cable 57 is pulled cable 58 will be fed on to the drum so that there will be a rotary movement to the drum and a slight swinging movement. By the arrangement of the link 59 and associate parts the drum 56 cannot be rotated beyond a certain degree, and by the arrangement shown in Fig. 10 means are provided for limiting the turning of the shaft 45. The shaft 45 is provided intermediate its length with bifurcated portions 64 and 65 into the travel of the cylinders and valve is controlled as these members close the valve at the end of-the stroke and thus prevent the tension head in the cylinder from striking the istons. Y i

aving thus described my invention I claim as new and desire to secure by. Letters 1. In an oscillating piston engine, a cylinder formed Y into a plurality of sections,

means for clamping said sections together so as to make a complete cylinder, an abutment rigidly secured to said cylinder at the juncture of each of said'sections, whereby said cylinder is divided intoa (plurality of compartments, a piston arrange said compartments, a shaft arranged centrally of the cylinder. rigidly connected to said pistons, saidfsh'aft aving aport. on

'ea'chsidefof each of the pistons, and a valve for each pair 0 ports; for controlling the inlet and exhaus from. the opposite sides of each of the istons,

, 2; In an oscil ating piston engine, a'cylinder, a," lurality of abutments arranged in said cy iiider, whereby said cylinder is divided into compartments, a piston arranged in each of said compartments, a shaft connected with each'of said istons, said shaft being hollow and formed with a pair" of ports at each piston, said portsopening on opposite sides of the piston, a valve arranged oppositeeach pair of said ports for controlling the inlet and exhaust, and a sin le controlling member engaging all of sai valves for simultaneouslyshifting the same. I

3. In an oscillating pistonengine, a cylinder, a lurality of abutments arranged therein viding the cylinder into compartments, a piston arranged in each of said compartments, a shaft in each of rigidly secured to said piston, said shaft being formed with an 'sit on thereof.

4. In an oscillating piston engine, a cylinder, a plurality of abutments arranged in said cylinder, a piston arran d between each pair of abutments, a sha secured to' all of said istons, said shaftbeing formed with an en arged bore, and areduced bore opening into the enlarged bore, said shaft havin a air of, orts for each iston arrange adiacent e juncture 0 said enlargedjbore with said reduced bore, a bearing' plate secured to said shaft in said enlarged bore, and on-the shoulder provided at the juncture betweenthe enlarged bore and the reduced here,- said plate havin a plurality of openings, a valve arran e in said enlarged bore and resting on sai late for each'of said pistons, each of said va ves hav-' ing'an exhaust port designed to register with the openings in said plate, and with some of said ports while the other of said ports are in communication with said enlar ed bore, means for directing pressure to said valves so as to turn on and off the pressure to said cylinder and cause the same to be applied to either side of said pistons for moving the same in either direction.

Y i5. Injan oscillating piston engine, a cylinder, a plurality of abutments' arranged in said cyhnder dividing the cylinder into compartments, a piston arranged in each of said compartments, a shaft connected to said pistons, said shaft being hollow and formed with a pair of ports for each of said p1stons so that the interior of the shaft may be brought into communication with either side of said piston, means for supplying steam. to the interior of said shaft, a valve for; each of said pistons for regulating the inlet a'ndexhaust through said port's, an operating shaft for controlling the osition of said valve, an arm for moving said operating shaft, and means operable from a distance forcontrolling the position of said arm; L H I I In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses,

i p JOHN BERGESEN. Witnesses:

, I. R. Rowmxn, Jams Bums.

Y sai enlarged bore and-a single controlling -member for shifting the position of all of 

